I hadn't updated in months. I did `pacman -Syu`
Update happened normally, and then this happened
The rest of the session went smoothly I did misc tasks, and closed the computer without thinking anything had gone wrong.
However, on reboot, after I login on tty1 (the classic username and password) and after that, dwm loads (I can see desktop background image, and the tabs numbered top left) and the keyboard's input is completely ignored. Any button. Keyboard definitely is not broken however, as I entered username+password on tty, and it even has light-coloring (modern keyboards) ((no light-coloring means no input can be caught eg on booting to BIOS for a few frames this can be confirmed))
I rebooted the pc, and CTRL+ALT+F2 to enter on tty2, and entered username and password.
It entered normally. And keyboard works, I can type any debug commands to figure out this problem.
Output Logs below of the 4 commands from helpFAQ
dmesg: read kernel buffer failed. Operation not permitted.
lsusb: command not found.
lsmod: Module Size Used by
mousedev 24576 0
intel_rapl_msr 20480 0
snd_usb_audio 385024 0
snd_usbmidi_lib 45056 1 snd_usb_audio
uas 32768 0
usb_storage 81920 1 uas
ppdev 24576 0
wmi_bmof 16384 0
snd_rawmidi 53248 1 snd_usbmidi_lib
snd_seq_device 16384 1 snd_rawmidi
usbhid 73728 0
mc 69632 1 snd_usb_audio
r8169 102400 0
intel_rapl_common 32768 1 intel_rapl_msr
realtek 36864 1
mdio_devres 16384 1 r8169
snd_hda_codec_realtek 167936 1
edac_mce_amd 57344 0
snd_hda_codec_generic 98304 1 snd_hda_codec_realtek
libphy 172032 3 r8169,mdio_devres,realtek
ledtrig_audio 16384 1 snd_hda_codec_generic
snd_hda_codec_hdmi 86016 1
rfkill 32768 0
snd_hda_intel 61440 0
snd_intel_dspcfg 36864 1 snd_hda_intel
snd_intel_sdw_acpi 20480 1 snd_intel_dspcfg
nouveau 2768896 1
kvm 1118208 0
snd_hda_codec 188416 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
nls_iso8859_1 16384 1
snd_hda_core 118784 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep 16384 2 snd_usb_audio,snd_hda_codec
irqbypass 16384 1 kvm
vfat 24576 1
fat 90112 1 vfat
mxm_wmi 16384 1 nouveau
crct10dif_pclmul 16384 1
snd_pcm 172032 5 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core
crc32_pclmul 16384 0
video 57344 1 nouveau
ghash_clmulni_intel 16384 0
snd_timer 49152 1 snd_pcm
aesni_intel 380928 0
drm_ttm_helper 16384 1 nouveau
ttm 86016 2 drm_ttm_helper,nouveau
snd 126976 12 snd_hda_codec_generic,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
crypto_simd 16384 1 aesni_intel
cryptd 24576 2 crypto_simd,ghash_clmulni_intel
ccp 135168 0
drm_dp_helper 163840 1 nouveau
soundcore 16384 1 snd
sp5100_tco 20480 0
rapl 16384 0
rng_core 20480 1 ccp
i2c_piix4 36864 0
k10temp 16384 0
parport_pc 69632 0
parport 77824 2 parport_pc,ppdev
gpio_amdpt 20480 0
wmi 45056 3 wmi_bmof,mxm_wmi,nouveau
pinctrl_amd 32768 0
gpio_generic 20480 1 gpio_amdpt
acpi_cpufreq 32768 0
joydev 28672 0
mac_hid 16384 0
xpad 45056 0
ff_memless 20480 1 xpad
ext4 1011712 2
crc32c_generic 16384 0
crc16 16384 1 ext4
mbcache 16384 1 ext4
jbd2 188416 1 ext4
crc32c_intel 24576 4
xhci_pci 20480 0
xhci_pci_renesas 24576 1 xhci_pci
lspci -v:
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Root Complex
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: fast devsel
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) I/O Memory Management Unit
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: fast devsel, IRQ 25
Capabilities: <access denied>
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Flags: fast devsel, IOMMU group 0
00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge (prog-if 00 [Normal decode])
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: bus master, fast devsel, latency 0, IRQ 26, IOMMU group 1
Bus: primary=00, secondary=03, subordinate=28, sec-latency=0
I/O behind bridge: f000-ffff [size=4K] [16-bit]
Memory behind bridge: f7500000-f76fffff [size=2M] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Flags: fast devsel, IOMMU group 2
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Flags: fast devsel, IOMMU group 3
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge (prog-if 00 [Normal decode])
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: bus master, fast devsel, latency 0, IRQ 27, IOMMU group 4
Bus: primary=00, secondary=29, subordinate=29, sec-latency=0
I/O behind bridge: e000-efff [size=4K] [16-bit]
Memory behind bridge: f6000000-f70fffff [size=17M] [32-bit]
Prefetchable memory behind bridge: e0000000-f1ffffff [size=288M] [32-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Flags: fast devsel, IOMMU group 5
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Flags: fast devsel, IOMMU group 6
00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B (prog-if 00 [Normal decode])
Subsystem: Device 7a38:1462
Flags: bus master, fast devsel, latency 0, IRQ 28, IOMMU group 7
Bus: primary=00, secondary=2a, subordinate=2a, sec-latency=0
I/O behind bridge: [disabled] [32-bit]
Memory behind bridge: f7200000-f74fffff [size=3M] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Flags: fast devsel, IOMMU group 8
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B (prog-if 00 [Normal decode])
Subsystem: Device 7a38:1462
Flags: bus master, fast devsel, latency 0, IRQ 30, IOMMU group 9
Bus: primary=00, secondary=2b, subordinate=2b, sec-latency=0
I/O behind bridge: [disabled] [32-bit]
Memory behind bridge: f7700000-f77fffff [size=1M] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59)
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: 66MHz, medium devsel, IOMMU group 10
Kernel driver in use: piix4_smbus
Kernel modules: i2c_piix4, sp5100_tco
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: bus master, 66MHz, medium devsel, latency 0, IOMMU group 10
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0
Flags: fast devsel, IOMMU group 11
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1
Flags: fast devsel, IOMMU group 11
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2
Flags: fast devsel, IOMMU group 11
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3
Flags: fast devsel, IOMMU group 11
Kernel driver in use: k10temp
Kernel modules: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4
Flags: fast devsel, IOMMU group 11
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5
Flags: fast devsel, IOMMU group 11
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 6
Flags: fast devsel, IOMMU group 11
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7
Flags: fast devsel, IOMMU group 11
03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 XHCI Controller (rev 01) (prog-if 30 [XHCI])
Subsystem: ASMedia Technology Inc. Device 1142
Flags: bus master, fast devsel, latency 0, IRQ 29, IOMMU group 12
Memory at f76a0000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01) (prog-if 01 [AHCI 1.0])
Subsystem: ASMedia Technology Inc. Device 1062
Flags: bus master, fast devsel, latency 0, IRQ 39, IOMMU group 12
Memory at f7680000 (32-bit, non-prefetchable) [size=128K]
Expansion ROM at f7600000 [disabled] [size=512K]
Capabilities: <access denied>
Kernel driver in use: ahci
03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Bridge (rev 01) (prog-if 00 [Normal decode])
Subsystem: ASMedia Technology Inc. Device 0201
Flags: bus master, fast devsel, latency 0, IRQ 32, IOMMU group 12
Bus: primary=03, secondary=20, subordinate=28, sec-latency=0
I/O behind bridge: f000-ffff [size=4K] [16-bit]
Memory behind bridge: f7500000-f75fffff [size=1M] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
20:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01) (prog-if 00 [Normal decode])
Subsystem: ASMedia Technology Inc. Device 3306
Flags: bus master, fast devsel, latency 0, IRQ 33, IOMMU group 12
Bus: primary=20, secondary=25, subordinate=25, sec-latency=0
I/O behind bridge: f000-ffff [size=4K] [16-bit]
Memory behind bridge: f7500000-f75fffff [size=1M] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
20:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01) (prog-if 00 [Normal decode])
Subsystem: ASMedia Technology Inc. Device 3306
Flags: bus master, fast devsel, latency 0, IRQ 35, IOMMU group 12
Bus: primary=20, secondary=26, subordinate=26, sec-latency=0
I/O behind bridge: [disabled] [32-bit]
Memory behind bridge: [disabled] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
20:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01) (prog-if 00 [Normal decode])
Subsystem: ASMedia Technology Inc. Device 3306
Flags: bus master, fast devsel, latency 0, IRQ 36, IOMMU group 12
Bus: primary=20, secondary=27, subordinate=27, sec-latency=0
I/O behind bridge: [disabled] [32-bit]
Memory behind bridge: [disabled] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
20:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01) (prog-if 00 [Normal decode])
Subsystem: ASMedia Technology Inc. Device 3306
Flags: bus master, fast devsel, latency 0, IRQ 38, IOMMU group 12
Bus: primary=20, secondary=28, subordinate=28, sec-latency=0
I/O behind bridge: [disabled] [32-bit]
Memory behind bridge: [disabled] [32-bit]
Prefetchable memory behind bridge: [disabled] [64-bit]
Capabilities: <access denied>
Kernel driver in use: pcieport
25:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: bus master, fast devsel, latency 0, IRQ 29, IOMMU group 12
I/O ports at f000 [size=256]
Memory at f7504000 (64-bit, non-prefetchable) [size=4K]
Memory at f7500000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169
29:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd GV-N105TOC-4GD
Flags: bus master, fast devsel, latency 0, IRQ 63, IOMMU group 13
Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f0000000 (64-bit, prefetchable) [size=32M]
I/O ports at e000 [size=128]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: nouveau
Kernel modules: nouveau
29:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
Subsystem: Gigabyte Technology Co., Ltd Device 3763
Flags: bus master, fast devsel, latency 0, IRQ 64, IOMMU group 13
Memory at f7080000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
2a:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Raven/Raven2 PCIe Dummy Function
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: fast devsel, IOMMU group 14
Capabilities: <access denied>
2a:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Platform Security Processor
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: bus master, fast devsel, latency 0, IRQ 59, IOMMU group 15
Memory at f7300000 (32-bit, non-prefetchable) [size=1M]
Memory at f7400000 (32-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: ccp
Kernel modules: ccp
2a:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Zeppelin USB 3.0 Host controller (prog-if 30 [XHCI])
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: bus master, fast devsel, latency 0, IRQ 50, IOMMU group 16
Memory at f7200000 (64-bit, non-prefetchable) [size=1M]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
2b:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Zeppelin/Renoir PCIe Dummy Function
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: fast devsel, IOMMU group 17
Capabilities: <access denied>
2b:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51) (prog-if 01 [AHCI 1.0])
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7a38
Flags: bus master, fast devsel, latency 0, IRQ 41, IOMMU group 18
Memory at f7708000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ahci
2b:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) HD Audio Controller
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 9a38
Flags: bus master, fast devsel, latency 0, IRQ 66, IOMMU group 19
Memory at f7700000 (32-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
How to find out what is wrong on my main setup? I cannot think of anything else.